Speaking of injecting things... every time I, when using Chrome to read GMail emails, switch email accounts, iPadOS prompts me to use Apple's Mail app. I can't

Speaking of injecting things... every time I, when using Chrome to read GMail emails, switch email accounts, iPadOS prompts me to use Apple's Mail app. I can't turn it off. I will never use their app. How does it know I'm switching email accounts?